mersenneforum.org  

Go Back   mersenneforum.org > Search Forums

Showing results 1 to 10 of 10
Search took 0.00 seconds.
Search: Posts Made By: R2357
Forum: Puzzles 2020-10-16, 05:10
Replies: 32
Views: 2,072
Posted By R2357
1, 3

I would guess the triangular numbers, at least, it's a possibility.
Forum: Puzzles 2020-10-12, 15:29
Replies: 32
Views: 2,072
Posted By R2357
Kruoli, for b=30, I found 41449031306819

Kruoli, for b=30, I found 41449031306819
Forum: Puzzles 2020-10-12, 15:13
Replies: 32
Views: 2,072
Posted By R2357
Yes, but that wasn't what I had in mind, it's...

Yes, but that wasn't what I had in mind, it's already been found.
Forum: Puzzles 2020-10-12, 15:02
Replies: 32
Views: 2,072
Posted By R2357
Sorry, I should have written base 10

Sorry, I should have written base 10
Forum: Puzzles 2020-10-12, 15:00
Replies: 32
Views: 2,072
Posted By R2357
How did you get the result for b=30, I didn't get...

How did you get the result for b=30, I didn't get the same.
Forum: Puzzles 2020-10-12, 14:58
Replies: 32
Views: 2,072
Posted By R2357
OEIS

I don't know about the last one but fore base 30, I checked and it seems that OEIS is right, it's not prime.
Forum: Puzzles 2020-10-12, 14:39
Replies: 32
Views: 2,072
Posted By R2357
I meant that the last digit to occur in both,...

I meant that the last digit to occur in both, after all the others already occured is 0
Forum: Puzzles 2020-10-12, 05:58
Replies: 32
Views: 2,072
Posted By R2357
Smile Another riddle :)

Here goes, what do pi and the prime number sequence have in common (apart from pi's usage in the prime counting function and in the Gapcoin symbol)?
Forum: Puzzles 2020-10-11, 18:55
Replies: 32
Views: 2,072
Posted By R2357
Well done!

Well done!
Forum: Puzzles 2020-10-11, 18:10
Replies: 32
Views: 2,072
Posted By R2357
Smile A little puzzle

Hello,
I thought I would give the forum a little puzzle that I made :)


Here is the puzzle :

What do the numbers 3, 4, 5, 9, 10 and 15 have in common?

...
Showing results 1 to 10 of 10

 
All times are UTC. The time now is 14:39.

Wed Jan 20 14:39:25 UTC 2021 up 48 days, 10:50, 0 users, load averages: 3.93, 3.78, 3.93

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.